diff --git a/src/classes/site.ts b/src/classes/site.ts
index d01a31ac2..dc0ebd97f 100644
--- a/src/classes/site.ts
+++ b/src/classes/site.ts
@@ -78,6 +78,12 @@ export interface CoreSiteWSPreSets {
      */
     getEmergencyCacheUsingCacheKey?: boolean;
 
+    /**
+     * If true, the cache entry will be deleted if the WS call returns an exception.
+     * @type {boolean}
+     */
+    deleteCacheIfWSError?: boolean;
+
     /**
      * Whether it should only be 1 entry for this cache key (all entries with same key will be deleted).
      * @type {boolean}
@@ -633,6 +639,15 @@ export class CoreSite {
                     return Promise.reject(error);
                 }
 
+                if (preSets.deleteCacheIfWSError && this.utils.isWebServiceError(error)) {
+                    // Delete the cache entry and return the entry. Don't block the user with the delete.
+                    this.deleteFromCache(method, data, preSets).catch(() => {
+                        // Ignore errors.
+                    });
+
+                    return Promise.reject(error);
+                }
+
                 this.logger.debug(`WS call '${method}' failed. Trying to use the emergency cache.`);
                 preSets.omitExpires = true;
                 preSets.getFromCache = true;
diff --git a/src/core/siteplugins/classes/course-option-handler.ts b/src/core/siteplugins/classes/course-option-handler.ts
index c54f049a3..66b2c5c6f 100644
--- a/src/core/siteplugins/classes/course-option-handler.ts
+++ b/src/core/siteplugins/classes/course-option-handler.ts
@@ -25,7 +25,7 @@ export class CoreSitePluginsCourseOptionHandler extends CoreSitePluginsBaseHandl
     priority: number;
 
     constructor(name: string, protected title: string, protected plugin: any, protected handlerSchema: any,
-            protected bootstrapResult: any, protected sitePluginsProvider: CoreSitePluginsProvider) {
+            protected initResult: any, protected sitePluginsProvider: CoreSitePluginsProvider) {
         super(name);
 
         this.priority = handlerSchema.priority;
@@ -42,7 +42,7 @@ export class CoreSitePluginsCourseOptionHandler extends CoreSitePluginsBaseHandl
      */
     isEnabledForCourse(courseId: number, accessData: any, navOptions?: any, admOptions?: any): boolean | Promise<boolean> {
         return this.sitePluginsProvider.isHandlerEnabledForCourse(
-                courseId, this.handlerSchema.restricttoenrolledcourses, this.bootstrapResult.restrict);
+                courseId, this.handlerSchema.restricttoenrolledcourses, this.initResult.restrict);
     }
 
     /**
diff --git a/src/core/siteplugins/classes/main-menu-handler.ts b/src/core/siteplugins/classes/main-menu-handler.ts
index 7be3245ac..d837d7525 100644
--- a/src/core/siteplugins/classes/main-menu-handler.ts
+++ b/src/core/siteplugins/classes/main-menu-handler.ts
@@ -22,7 +22,7 @@ export class CoreSitePluginsMainMenuHandler extends CoreSitePluginsBaseHandler i
     priority: number;
 
     constructor(name: string, protected title: string, protected plugin: any, protected handlerSchema: any,
-            protected bootstrapResult: any) {
+            protected initResult: any) {
         super(name);
 
         this.priority = handlerSchema.priority;
@@ -43,7 +43,7 @@ export class CoreSitePluginsMainMenuHandler extends CoreSitePluginsBaseHandler i
                 title: this.title,
                 component: this.plugin.component,
                 method: this.handlerSchema.method,
-                bootstrapResult: this.bootstrapResult
+                initResult: this.initResult
             }
         };
     }
diff --git a/src/core/siteplugins/classes/user-handler.ts b/src/core/siteplugins/classes/user-handler.ts
index 0b003e56e..fb4851f61 100644
--- a/src/core/siteplugins/classes/user-handler.ts
+++ b/src/core/siteplugins/classes/user-handler.ts
@@ -38,7 +38,7 @@ export class CoreSitePluginsUserProfileHandler extends CoreSitePluginsBaseHandle
     type: string;
 
     constructor(name: string, protected title: string, protected plugin: any, protected handlerSchema: any,
-            protected bootstrapResult: any, protected sitePluginsProvider: CoreSitePluginsProvider) {
+            protected initResult: any, protected sitePluginsProvider: CoreSitePluginsProvider) {
         super(name);
 
         this.priority = handlerSchema.priority;
@@ -59,14 +59,14 @@ export class CoreSitePluginsUserProfileHandler extends CoreSitePluginsBaseHandle
     isEnabledForUser(user: any, courseId: number, navOptions?: any, admOptions?: any): boolean | Promise<boolean> {
         // First check if it's enabled for the user.
         const enabledForUser = this.sitePluginsProvider.isHandlerEnabledForUser(user.id, this.handlerSchema.restricttocurrentuser,
-                this.bootstrapResult.restrict);
+                this.initResult.restrict);
         if (!enabledForUser) {
             return false;
         }
 
         // Enabled for user, check if it's enabled for the course.
         return this.sitePluginsProvider.isHandlerEnabledForCourse(
-                courseId, this.handlerSchema.restricttoenrolledcourses, this.bootstrapResult.restrict);
+                courseId, this.handlerSchema.restricttoenrolledcourses, this.initResult.restrict);
     }
 
     /**
@@ -92,7 +92,7 @@ export class CoreSitePluginsUserProfileHandler extends CoreSitePluginsBaseHandle
                         courseid: courseId,
                         userid: user.id
                     },
-                    bootstrapResult: this.bootstrapResult
+                    initResult: this.initResult
                 });
             }
         };
diff --git a/src/core/siteplugins/components/course-format/course-format.html b/src/core/siteplugins/components/course-format/course-format.html
index b4dd6868b..cd6008506 100644
--- a/src/core/siteplugins/components/course-format/course-format.html
+++ b/src/core/siteplugins/components/course-format/course-format.html
@@ -1 +1 @@
-<core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [bootstrapResult]="bootstrapResult"></core-site-plugins-plugin-content>
\ No newline at end of file
+<core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [initResult]="initResult"></core-site-plugins-plugin-content>
\ No newline at end of file
diff --git a/src/core/siteplugins/components/course-format/course-format.ts b/src/core/siteplugins/components/course-format/course-format.ts
index 72a5972f4..964b9300f 100644
--- a/src/core/siteplugins/components/course-format/course-format.ts
+++ b/src/core/siteplugins/components/course-format/course-format.ts
@@ -33,7 +33,7 @@ export class CoreSitePluginsCourseFormatComponent implements OnInit {
     component: string;
     method: string;
     args: any;
-    bootstrapResult: any;
+    initResult: any;
 
     constructor(protected sitePluginsProvider: CoreSitePluginsProvider) { }
 
@@ -50,7 +50,7 @@ export class CoreSitePluginsCourseFormatComponent implements OnInit {
                     courseid: this.course.id,
                     downloadenabled: this.downloadEnabled
                 };
-                this.bootstrapResult = handler.bootstrapResult;
+                this.initResult = handler.initResult;
             }
         }
     }
diff --git a/src/core/siteplugins/components/course-option/course-option.html b/src/core/siteplugins/components/course-option/course-option.html
index fcda25ccd..b2191c305 100644
--- a/src/core/siteplugins/components/course-option/course-option.html
+++ b/src/core/siteplugins/components/course-option/course-option.html
@@ -2,5 +2,5 @@
     <ion-refresher [enabled]="content && content.dataLoaded" (ionRefresh)="refreshData($event)">
         <ion-refresher-content pullingText="{{ 'core.pulltorefresh' | translate }}"></ion-refresher-content>
     </ion-refresher>
-    <core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [bootstrapResult]="bootstrapResult"></core-site-plugins-plugin-content>
+    <core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [initResult]="initResult"></core-site-plugins-plugin-content>
 </ion-content>
\ No newline at end of file
diff --git a/src/core/siteplugins/components/course-option/course-option.ts b/src/core/siteplugins/components/course-option/course-option.ts
index b14e67b76..27725faba 100644
--- a/src/core/siteplugins/components/course-option/course-option.ts
+++ b/src/core/siteplugins/components/course-option/course-option.ts
@@ -32,7 +32,7 @@ export class CoreSitePluginsCourseOptionComponent implements OnInit {
     component: string;
     method: string;
     args: any;
-    bootstrapResult: any;
+    initResult: any;
 
     constructor(protected sitePluginsProvider: CoreSitePluginsProvider) { }
 
@@ -48,7 +48,7 @@ export class CoreSitePluginsCourseOptionComponent implements OnInit {
                 this.args = {
                     courseid: this.courseId,
                 };
-                this.bootstrapResult = handler.bootstrapResult;
+                this.initResult = handler.initResult;
             }
         }
     }
diff --git a/src/core/siteplugins/components/module-index/module-index.html b/src/core/siteplugins/components/module-index/module-index.html
index bee280179..6e09aa864 100644
--- a/src/core/siteplugins/components/module-index/module-index.html
+++ b/src/core/siteplugins/components/module-index/module-index.html
@@ -9,4 +9,4 @@
     </core-context-menu>
 </core-navbar-buttons>
 
-<core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [bootstrapResult]="bootstrapResult" (onContentLoaded)="contentLoaded($event)" (onLoadingContent)="contentLoading($event)"></core-site-plugins-plugin-content>
+<core-site-plugins-plugin-content *ngIf="component && method" [component]="component" [method]="method" [args]="args" [initResult]="initResult" (onContentLoaded)="contentLoaded($event)" (onLoadingContent)="contentLoading($event)"></core-site-plugins-plugin-content>
diff --git a/src/core/siteplugins/components/module-index/module-index.ts b/src/core/siteplugins/components/module-index/module-index.ts
index c3cfb5e01..d1b77d2a6 100644
--- a/src/core/siteplugins/components/module-index/module-index.ts
+++ b/src/core/siteplugins/components/module-index/module-index.ts
@@ -37,7 +37,7 @@ export class CoreSitePluginsModuleIndexComponent implements OnInit, OnDestroy, C
     component: string;
     method: string;
     args: any;
-    bootstrapResult: any;
+    initResult: any;
 
     // Data for context menu.
     externalUrl: string;
@@ -69,7 +69,7 @@ export class CoreSitePluginsModuleIndexComponent implements OnInit, OnDestroy, C
                     courseid: this.courseId,
                     cmid: this.module.id
                 };
-                this.bootstrapResult = handler.bootstrapResult;
+                this.initResult = handler.initResult;
             }
 
             // Get the data for the context menu.
diff --git a/src/core/siteplugins/components/plugin-content/plugin-content.ts b/src/core/siteplugins/components/plugin-content/plugin-content.ts
index 0e31421ea..60e01389a 100644
--- a/src/core/siteplugins/components/plugin-content/plugin-content.ts
+++ b/src/core/siteplugins/components/plugin-content/plugin-content.ts
@@ -28,7 +28,7 @@ export class CoreSitePluginsPluginContentComponent implements OnInit {
     @Input() component: string;
     @Input() method: string;
     @Input() args: any;
-    @Input() bootstrapResult: any; // Result of the bootstrap WS call of the handler.
+    @Input() initResult: any; // Result of the init WS call of the handler.
     @Output() onContentLoaded?: EventEmitter<boolean>; // Emits an event when the content is loaded.
     @Output() onLoadingContent?: EventEmitter<boolean>; // Emits an event when starts to load the content.
 
@@ -65,7 +65,7 @@ export class CoreSitePluginsPluginContentComponent implements OnInit {
             this.content = result.templates.length ? result.templates[0].html : ''; // Load first template.
             this.javascript = result.javascript;
             this.otherData = result.otherdata;
-            this.jsData = this.sitePluginsProvider.createDataForJS(this.bootstrapResult, result);
+            this.jsData = this.sitePluginsProvider.createDataForJS(this.initResult, result);
 
             this.onContentLoaded.emit(refresh);
         }).catch((error) => {
diff --git a/src/core/siteplugins/directives/call-ws-new-content.ts b/src/core/siteplugins/directives/call-ws-new-content.ts
index 7f1346ef5..44f918f60 100644
--- a/src/core/siteplugins/directives/call-ws-new-content.ts
+++ b/src/core/siteplugins/directives/call-ws-new-content.ts
@@ -92,7 +92,7 @@ export class CoreSitePluginsCallWSNewContentDirective extends CoreSitePluginsCal
                 component: this.component,
                 method: this.method,
                 args: args,
-                bootstrapResult: this.parentContent && this.parentContent.bootstrapResult
+                initResult: this.parentContent && this.parentContent.initResult
             });
         }
     }
diff --git a/src/core/siteplugins/directives/new-content.ts b/src/core/siteplugins/directives/new-content.ts
index 6503ed5a2..3f7e5933d 100644
--- a/src/core/siteplugins/directives/new-content.ts
+++ b/src/core/siteplugins/directives/new-content.ts
@@ -89,7 +89,7 @@ export class CoreSitePluginsNewContentDirective implements OnInit {
                     component: this.component,
                     method: this.method,
                     args: args,
-                    bootstrapResult: this.parentContent && this.parentContent.bootstrapResult
+                    initResult: this.parentContent && this.parentContent.initResult
                 });
             }
         });
diff --git a/src/core/siteplugins/pages/plugin-page/plugin-page.html b/src/core/siteplugins/pages/plugin-page/plugin-page.html
index 33f22af85..22c2ebe07 100644
--- a/src/core/siteplugins/pages/plugin-page/plugin-page.html
+++ b/src/core/siteplugins/pages/plugin-page/plugin-page.html
@@ -11,5 +11,5 @@
     <ion-refresher [enabled]="content && content.dataLoaded" (ionRefresh)="refreshData($event)">
         <ion-refresher-content pullingText="{{ 'core.pulltorefresh' | translate }}"></ion-refresher-content>
     </ion-refresher>
-    <core-site-plugins-plugin-content [component]="component" [method]="method" [args]="args" [bootstrapResult]="bootstrapResult"></core-site-plugins-plugin-content>
+    <core-site-plugins-plugin-content [component]="component" [method]="method" [args]="args" [initResult]="initResult"></core-site-plugins-plugin-content>
 </ion-content>
diff --git a/src/core/siteplugins/pages/plugin-page/plugin-page.ts b/src/core/siteplugins/pages/plugin-page/plugin-page.ts
index 38d516a47..0b02ad00a 100644
--- a/src/core/siteplugins/pages/plugin-page/plugin-page.ts
+++ b/src/core/siteplugins/pages/plugin-page/plugin-page.ts
@@ -32,14 +32,14 @@ export class CoreSitePluginsPluginPage {
     component: string;
     method: string;
     args: any;
-    bootstrapResult: any;
+    initResult: any;
 
     constructor(params: NavParams) {
         this.title = params.get('title');
         this.component = params.get('component');
         this.method = params.get('method');
         this.args = params.get('args');
-        this.bootstrapResult = params.get('bootstrapResult');
+        this.initResult = params.get('initResult');
     }
 
     /**
diff --git a/src/core/siteplugins/providers/helper.ts b/src/core/siteplugins/providers/helper.ts
index 95cffee2d..9d6fa24e5 100644
--- a/src/core/siteplugins/providers/helper.ts
+++ b/src/core/siteplugins/providers/helper.ts
@@ -89,19 +89,19 @@ export class CoreSitePluginsHelperProvider {
     }
 
     /**
-     * Bootstrap a handler if it has some bootstrap method.
+     * Execute a handler's init method if it has any.
      *
      * @param {any} plugin Data of the plugin.
      * @param {any} handlerSchema Data about the handler.
      * @return {Promise<any>} Promise resolved when done. It returns the results of the getContent call and the data returned by
-     *                        the bootstrap JS (if any).
+     *                        the init JS (if any).
      */
-    protected bootstrapHandler(plugin: any, handlerSchema: any): Promise<any> {
-        if (!handlerSchema.bootstrap) {
+    protected executeHandlerInit(plugin: any, handlerSchema: any): Promise<any> {
+        if (!handlerSchema.init) {
             return Promise.resolve({});
         }
 
-        return this.executeMethodAndJS(plugin, handlerSchema.bootstrap);
+        return this.executeMethodAndJS(plugin, handlerSchema.init, true);
     }
 
     /**
@@ -109,12 +109,16 @@ export class CoreSitePluginsHelperProvider {
      *
      * @param {any} plugin Data of the plugin.
      * @param {string} method The method to call.
+     * @param {boolean} [isInit] Whether it's the init method.
      * @return {Promise<any>} Promise resolved when done. It returns the results of the getContent call and the data returned by
      *                        the JS (if any).
      */
-    protected executeMethodAndJS(plugin: any, method: string): Promise<any> {
+    protected executeMethodAndJS(plugin: any, method: string, isInit?: boolean): Promise<any> {
         const siteId = this.sitesProvider.getCurrentSiteId(),
-            preSets = {getFromCache: false}; // Try to ignore cache.
+            preSets = {
+                getFromCache: false, // Try to ignore cache.
+                deleteCacheIfWSError: isInit // If the init WS call returns an exception we won't use cached data.
+            };
 
         return this.sitePluginsProvider.getContent(plugin.component, method, {}, preSets).then((result) => {
             if (!result.javascript || this.sitesProvider.getCurrentSiteId() != siteId) {
@@ -290,8 +294,8 @@ export class CoreSitePluginsHelperProvider {
      */
     registerHandler(plugin: any, handlerName: string, handlerSchema: any): Promise<any> {
 
-        // Wait for the bootstrap JS to be executed.
-        return this.bootstrapHandler(plugin, handlerSchema).then((result) => {
+        // Wait for the init JS to be executed.
+        return this.executeHandlerInit(plugin, handlerSchema).then((result) => {
             let promise;
 
             switch (handlerSchema.delegate) {
@@ -331,12 +335,12 @@ export class CoreSitePluginsHelperProvider {
                         plugin: plugin,
                         handlerName: handlerName,
                         handlerSchema: handlerSchema,
-                        bootstrapResult: result
+                        initResult: result
                     });
                 }
             });
         }).catch((err) => {
-            this.logger.error('Error executing bootstrap method', handlerSchema.bootstrap, err);
+            this.logger.error('Error executing init method', handlerSchema.init, err);
         });
     }
 
@@ -346,11 +350,11 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerCourseFormatHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
-        this.logger.debug('Register site plugin in course format delegate:', plugin, handlerSchema, bootstrapResult);
+    protected registerCourseFormatHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
+        this.logger.debug('Register site plugin in course format delegate:', plugin, handlerSchema, initResult);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
@@ -366,10 +370,10 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerCourseOptionHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
+    protected registerCourseOptionHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
         if (!handlerSchema.displaydata) {
             // Required data not provided, stop.
             this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
@@ -377,14 +381,14 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in course option delegate:', plugin, handlerSchema, bootstrapResult);
+        this.logger.debug('Register site plugin in course option delegate:', plugin, handlerSchema, initResult);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
             prefixedTitle = this.getPrefixedString(plugin.addon, handlerSchema.displaydata.title);
 
         this.courseOptionsDelegate.registerHandler(new CoreSitePluginsCourseOptionHandler(uniqueName, prefixedTitle, plugin,
-                handlerSchema, bootstrapResult, this.sitePluginsProvider));
+                handlerSchema, initResult, this.sitePluginsProvider));
 
         return uniqueName;
     }
@@ -395,10 +399,10 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerMainMenuHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
+    protected registerMainMenuHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
         if (!handlerSchema.displaydata) {
             // Required data not provided, stop.
             this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
@@ -406,14 +410,14 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in main menu delegate:', plugin, handlerSchema, bootstrapResult);
+        this.logger.debug('Register site plugin in main menu delegate:', plugin, handlerSchema, initResult);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
             prefixedTitle = this.getPrefixedString(plugin.addon, handlerSchema.displaydata.title);
 
         this.mainMenuDelegate.registerHandler(
-                new CoreSitePluginsMainMenuHandler(uniqueName, prefixedTitle, plugin, handlerSchema, bootstrapResult));
+                new CoreSitePluginsMainMenuHandler(uniqueName, prefixedTitle, plugin, handlerSchema, initResult));
 
         return uniqueName;
     }
@@ -424,10 +428,10 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerModuleHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
+    protected registerModuleHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
         if (!handlerSchema.displaydata) {
             // Required data not provided, stop.
             this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
@@ -435,7 +439,7 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in module delegate:', plugin, handlerSchema, bootstrapResult);
+        this.logger.debug('Register site plugin in module delegate:', plugin, handlerSchema, initResult);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
@@ -458,10 +462,10 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string} A string to identify the handler.
      */
-    protected registerUserProfileHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any): string {
+    protected registerUserProfileHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any): string {
         if (!handlerSchema.displaydata) {
             // Required data not provided, stop.
             this.logger.warn('Ignore site plugin because it doesn\'t provide displaydata', plugin, handlerSchema);
@@ -469,14 +473,14 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in user profile delegate:', plugin, handlerSchema, bootstrapResult);
+        this.logger.debug('Register site plugin in user profile delegate:', plugin, handlerSchema, initResult);
 
         // Create and register the handler.
         const uniqueName = this.sitePluginsProvider.getHandlerUniqueName(plugin, handlerName),
             prefixedTitle = this.getPrefixedString(plugin.addon, handlerSchema.displaydata.title);
 
         this.userDelegate.registerHandler(new CoreSitePluginsUserProfileHandler(uniqueName, prefixedTitle, plugin, handlerSchema,
-                bootstrapResult, this.sitePluginsProvider));
+                initResult, this.sitePluginsProvider));
 
         return uniqueName;
     }
@@ -487,10 +491,10 @@ export class CoreSitePluginsHelperProvider {
      * @param {any} plugin Data of the plugin.
      * @param {string} handlerName Name of the handler in the plugin.
      * @param {any} handlerSchema Data about the handler.
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @return {string|Promise<string>} A string (or a promise resolved with a string) to identify the handler.
      */
-    protected registerUserProfileFieldHandler(plugin: any, handlerName: string, handlerSchema: any, bootstrapResult: any)
+    protected registerUserProfileFieldHandler(plugin: any, handlerName: string, handlerSchema: any, initResult: any)
             : string | Promise<string> {
         if (!handlerSchema.method) {
             // Required data not provided, stop.
@@ -499,7 +503,7 @@ export class CoreSitePluginsHelperProvider {
             return;
         }
 
-        this.logger.debug('Register site plugin in user profile field delegate:', plugin, handlerSchema, bootstrapResult);
+        this.logger.debug('Register site plugin in user profile field delegate:', plugin, handlerSchema, initResult);
 
         // Execute the main method and its JS. The template returned will be used in the profile field component.
         return this.executeMethodAndJS(plugin, handlerSchema.method).then((result) => {
diff --git a/src/core/siteplugins/providers/siteplugins.ts b/src/core/siteplugins/providers/siteplugins.ts
index dd3eb2ad5..bd7519cc9 100644
--- a/src/core/siteplugins/providers/siteplugins.ts
+++ b/src/core/siteplugins/providers/siteplugins.ts
@@ -47,10 +47,10 @@ export interface CoreSitePluginsHandler {
     handlerSchema: any;
 
     /**
-     * Result of the bootstrap WS call.
+     * Result of the init WS call.
      * @type {any}
      */
-    bootstrapResult?: any;
+    initResult?: any;
 }
 
 /**
@@ -137,23 +137,23 @@ export class CoreSitePluginsProvider {
     }
 
     /**
-     * Given the result of a bootstrap get_content and, optionally, the result of another get_content,
+     * Given the result of a init get_content and, optionally, the result of another get_content,
      * build an object with the data to pass to the JS of the get_content.
      *
-     * @param {any} bootstrapResult Result of the bootstrap WS call.
+     * @param {any} initResult Result of the init WS call.
      * @param {any} [contentResult] Result of the content WS call (if any).
      * @return {any} An object with the data to pass to the JS.
      */
-    createDataForJS(bootstrapResult: any, contentResult?: any): any {
-        // First of all, add the data returned by the bootstrap JS (if any).
-        let data = this.utils.clone(bootstrapResult.jsResult || {});
+    createDataForJS(initResult: any, contentResult?: any): any {
+        // First of all, add the data returned by the init JS (if any).
+        let data = this.utils.clone(initResult.jsResult || {});
         if (typeof data == 'boolean') {
             data = {};
         }
 
-        // Now add some data returned by the bootstrap WS call.
-        data.BOOTSTRAP_TEMPLATES = this.utils.objectToKeyValueMap(bootstrapResult.templates, 'id', 'html');
-        data.BOOTSTRAP_OTHERDATA = bootstrapResult.otherdata;
+        // Now add some data returned by the init WS call.
+        data.INIT_TEMPLATES = this.utils.objectToKeyValueMap(initResult.templates, 'id', 'html');
+        data.INIT_OTHERDATA = initResult.otherdata;
 
         if (contentResult) {
             // Now add the data returned by the content WS call.
diff --git a/src/providers/utils/utils.ts b/src/providers/utils/utils.ts
index 598415aa9..4fe7814fb 100644
--- a/src/providers/utils/utils.ts
+++ b/src/providers/utils/utils.ts
@@ -626,7 +626,11 @@ export class CoreUtilsProvider {
      * @return {boolean} Whether the error was returned by the WebService.
      */
     isWebServiceError(error: any): boolean {
-        return typeof error.errorcode == 'undefined' && typeof error.warningcode == 'undefined';
+        return typeof error.warningcode != 'undefined' || (typeof error.errorcode != 'undefined' &&
+                error.errorcode != 'invalidtoken' && error.errorcode != 'userdeleted' && error.errorcode != 'upgraderunning' &&
+                error.errorcode != 'forcepasswordchangenotice' && error.errorcode != 'usernotfullysetup' &&
+                error.errorcode != 'sitepolicynotagreed' && error.errorcode != 'sitemaintenance' &&
+                (error.errorcode != 'accessexception' || error.message.indexOf('Invalid token - token expired') == -1));
     }
 
     /**